This is the astonishing moment an arsonist throws a hand grenade into a luxury Marbella hotel popular with TOWIE celebrities and British tourists after setting it ablaze.

CCTV captures the mystery man calmly pulling the pin before tossing it into the bar area in a gangland-style attack before fleeing the scene ahead of the resulting explosion.

Moments earlier he is seen walking around the area near the pool - his face covered with a bandana and hidden under a baseball cap with a torch in his right hand - dousing the bar and sofas with an accelerant before setting it alight, nearly engulfing himself in flames in the process.

The attack happened at the Sisu Boutique Hotel where former TOWIE star Lauren Pope was pictured relaxing in May and where Tinie Tempah recently performed.

The Only Way Is Essex's Lucy Mecklenburgh party at Sisu Boutique Hotel in Marbella, Spain

Five girls pose for a photograph at a TOWIE party at Sisu Boutique Hotel in Marbella, Spain

Boxer James DeGale has also partied at the upmarket venue, a favourite with footballers and star couple Mark Wright and Michelle Keegan.

Lauren Pope completed a DJ set at the hotel near Puerto Banus before partying there just weeks after the hand grenade attack.